A bird on the Nile (5)
I believe the answer is:
aswan
'nile' is the definition.
Both the answer and definition are singular nouns.
Perhaps there's a link between them I don't understand?
'a bird on' is the wordplay.
'bird' becomes 'swan' (swan is a kind of bird).
'on' says to put letters next to each other.
'a'+'swan'='ASWAN'
'the' acts as a link.
Can you help me to learn more?
(Other definitions for aswan that I've seen before include "Nile High Dam" , "Site of dam in Egypt" , "Egyptian town and dam" , "Ancient city on the Nile" , "Site of dam on the Nile" .)